Art, I have used these poly tanks for about thew last ten years or better boiling water to cook oats for our race horses. Now that was to the temp that the water is boiling. Not one time has the barrel split, broke, spilt or what ever....the threaded bulkhead fitting is covered in about a half inch of metal set, which if you have never used, you can actually mill it, drill it tap it, etc. in orther words, its very strong. I do appreciate you concern on safety, however if you'll talk to the people the make the injected polyprolene (sp?) they will tell you the same. their tanks, barrels are rated to some quite high temps., none of which I even get close to..thanks again for your feed back....Jimbull
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